html,
body {
    padding: 0;
    margin: 0;
    height: 100%;
    font-size: 50px;
}

ul,
li {
    list-style: none;
    padding: 0;
    margin: 0;
}

@function cwidth($width) {
    @return (100vw * $width)/750
}

@function cheight($height) {
    @return (100vh * $height)/800
}

.page-container {
    height: 100%;
    padding: 0 cwidth(20);
    background: linear-gradient(0deg, #303438, #0d0f0e);
}
.area{
    background: linear-gradient(0deg, #303438, #0d0f0e);
    width: 100%;
    height: 100%;
}